package com.atguigu.springcloud.controller;


import com.atguigu.springcloud.entities.CommonResult;
import com.atguigu.springcloud.entities.Payment;
import com.atguigu.springcloud.lb.LoadBalancer;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.cloud.client.ServiceInstance;
import org.springframework.cloud.client.discovery.DiscoveryClient;
import org.springframework.http.ResponseEntity;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.RestController;
import org.springframework.web.client.RestTemplate;

import javax.annotation.Resource;
import java.net.URI;
import java.util.List;

/**
 * @author zhangchaoliang
 * create 2022-07-10 18:21
 */
@RestController
@Slf4j
public class OrderController {
//    public static final String PaymentSrv_URL = "http://localhost:8001";
    // 通过在eureka上注册过的微服务名称调用
    public static final String PaymentSrv_URL = "http://CLOUD-PAYMENT-SERVICE";

    @Autowired
    private RestTemplate restTemplate;


//    @Resource
//    private LoadBalancer loadBalancer;
//
//    @Resource
//    private DiscoveryClient discoveryClient;


    @GetMapping("/consumer/payment/create")
    public CommonResult create(Payment payment)
    {
        return restTemplate.postForObject(PaymentSrv_URL + "/payment/create",payment,CommonResult.class);
    }


    @GetMapping("/consumer/payment/get/{id}")
    public CommonResult getPayment(@PathVariable Long id)
    {
        return restTemplate.getForObject(PaymentSrv_URL + "/payment/get/"+id, CommonResult.class);
    }

    @GetMapping("/consumer/payment/getForEntity/{id}")
    public CommonResult getPayment2(@PathVariable Long id)
    {
        ResponseEntity<CommonResult> entity = restTemplate.getForEntity(PaymentSrv_URL + "/payment/get/"+id, CommonResult.class);

        if (entity.getStatusCode().is2xxSuccessful()){
            return entity.getBody();
        }else {
            return new CommonResult<>(444,"操作失败");
        }
    }

//    @GetMapping("/consumer/payment/lb")
//    public String getPaymentLB()
//    {
//        List<ServiceInstance> instances = discoveryClient.getInstances("CLOUD-PAYMENT-SERVICE");
//
//        if(instances == null || instances.size()<=0) {
//            return null;
//        }
//        ServiceInstance serviceInstance = loadBalancer.instances(instances);
//        URI uri = serviceInstance.getUri();
//
//        return restTemplate.getForObject(uri+"/payment/lb",String.class);
//    }
}
